1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kari74 [83]
3 years ago
7

Do more complex organisms always have more chromosomes than simpler organisms do

Biology
1 answer:
o-na [289]3 years ago
4 0
Yes because I think that more-complex cells need the chromosomes for help
You might be interested in
The neural pathway represents the nerves that connect the sense organs to the brain what happens along the neural pathway when t
disa [49]

Answer:

The visual cortex in the brain processes the signals to create the perception of vision.

Explanation:

Hope this helps.

5 0
3 years ago
Are there side effects to a garden? explain
defon
It is possible that there are side effects to a garden. One possible side effect is the excessive amount of moisture which could loosen up the soil. Also a bunch of bugs will begin to appear that could just eventually kill the garden in the long run if not treated properly 
8 0
3 years ago
In garden peas, the yellow seed trait is dominant over green seeds. Also, the round seed trait is dominant over the wrinkled-see
Darina [25.2K]

Answer:

405 individuals will be yellow and round seeded.

Explanation:

<u>Available data:</u>

  • the yellow seed trait is dominant over green seeds
  • round seed trait is dominant over the wrinkled-seed trait
  • These genes are on separate chromosomes

Let´s name the seed color genes Y, and the seed shape gene R

  • Y is the dominant allele for seed color expressing yellow
  • y is the recessive allele for seed color expressing green
  • R is the dominant allele for seed shape expressing round
  • r is the recessive allele for seed shape expressing wrinkled

Cross: between two plants that are heterozygous for both traits

Parental)       Yy Rr            x       Yy Rr

Gametes) YR   yR   Yr   yr   YR   yR   Yr   yr

Punnet Square)   YR         yR         Yr         yr

                YR     YYRR     YyRR     YYRr    YyRr

                yR      YyRR      yyRR     YyRr     yyRr

                Yr       YYRr      YyRr      YYrr     Yyrr

                yr        YyRr       yyRr      Yyrr      yyrr

F1) 720 individuals

    9/16 yellow and round seeded individuals, Y-R-

    3/16 green and round seeded individuals, yyR-

    3/16 yellow and wrinkle seeded individuals, Y-rr

    1/16 green and wrinkle seeded individuals, yyrr

<em>Note: the "-" symbol in the phenotypes means that there it could be either a dominant or recessive allele. </em>

If 720 is the total number of individuals in the F1, then:

16 possible genotypes ---------- 100% of the progeny -------- 720 individuals

9 yellow and rounded----------- 56.25% ----------------------------405 individuals

3 green and rounded-------------18.75%------------------------------135 individuals

3 yellow and wrinkled-------------18.75%------------------------------135 individuals

1 green and wrinkled--------------6.25%-------------------------------45 individuals

7 0
3 years ago
(b) What major biological concepts, in
kolezko [41]

Answer:

Biology can simply be described as the study of living organisms. Biology is divided into many sub categories depending on the features of life that we want to study. For example, molecular biology is the study of molecules which make up living organisms.

Zoology can be described as a branch of biology under which animals are studied. The field of zoology involved studying the taxonomy of animals, their evolutionary histories, physiology, embryology etc. All these studies are  parts of biology hence zoology and biology are related.

Apart from these other unifying principles shared between zoology and biology are genetics, cell biology, population biology,biochemistry etc.

6 0
3 years ago
Questions
Marat540 [252]

The decay of uranium isotopes is used to provide information about the age of Earth.

<h3>Explanation:</h3>

Isotopes of Uranium U-232, U-233 , U-234 , U-235 , U-236 , U-238 are used as fuel in nuclear reactors or as explosives for nuclear weapons. Uranium 238 is not very radioactive and it constitutes for nearly 99.3% of natural uranium on Earth and has the longest lifetime: its period is 4.5 billion years, about the age of Earth.

Use of radiometric dating techniques help in defining the age of substances (natural or man-made) using the known decay rates of radioactive elements. Each element has an  individual decay rate and half life time.

Two Uranium isotopes (U-238 and U-235) are used for radiometric dating. Both the isotopes have different decay rates and half life period. Both are unstable and radioactive. Since two different isotopes produce two different decay clocks (one as a reference to other), it is beneficial in accurately determining the age of samples. The age of earth (rocks or other natural elements) can be easily determined using Uranium isotopes.

4 0
3 years ago
Other questions:
  • during physical exertion, animals begin to respire heavily. What is the purpose of the heavy breathing?
    15·1 answer
  • In your opinion, which branch of science provides the most proof that the earth is approximately 4.6 billion years old? Justify
    10·1 answer
  • This example of sedimentary rock is formed when rock fragments, minerals, and the remains of plants and animals are deposited as
    11·2 answers
  • Why do scientists need a way to sort, or classify, living things? What method do they use to do this?
    8·2 answers
  • Ernie took the following notes in class.-has a narrow focus -addresses a gap in knowledge-may lead to a hypothesis
    7·1 answer
  • ¿Se pueden transferir mutaciones en todo tipo de células a la generación futura?
    11·2 answers
  • Why did land animals evolve back to aquatic environments?
    6·2 answers
  • Traits are controlled by<br> hybrids<br> alleles<br> purebreds<br> genetics
    13·1 answer
  • How do organisms contribute to the carbon cycle?
    13·1 answer
  • Which Tin Pan Alley composer published up to 1,500 songs including “Give My Regards to Broadway,” “You’re a Grand Old Flag,” and
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!